You have to post the er... url, is it? My trainer card goes automatically in my signature because I chose for it to but I had to wait for a certain status to get a card, though I have seen some 'Bug Catchers' with Trainer Cards from other sites, I think.
Eon made me this
so if I put it in a post I have to post the http:// thing for it. I have it saved in a Word document for when I want it.
There's a testing-your-signature part of the site.
This conversation should probably be in General Chatter or somewhere more relevant.
Oh, and you shouldn't double post, especially not shortly after you've just posted.